Substituted monocyclopentadienyl, monoindenyl, monofluorenyl and heterocyclopentadienyl complexes of chromium, molybdenum or tungsten in which at least one of the substituents on the cyclopentadienyl ring carries a donor function which is bonded rigidly, not exclusively via sp
3
-hybridized carbon or silicon atoms, and a process for the polymerization of olefins.
铬、
钼或
钨的取代单
环戊二烯基、单
吲哚基、单
萘基和杂
环戊二烯基配合物,其中
环戊二烯基环上至少一个取代基具有给体功能,通过刚性键合,不仅限于sp3杂化碳或
硅原子,以及一种用于烯烃聚合的方法。